The situation of the ship next became the matter of Mark’s most curious and interested investigation. She was clearly afloat, and the basin in which she rode had a communication on each side, of it, with the sound, or inlet, that still encircled the Reef. Descending to the shore, our young mariner got into the dingui, and pulled out round the vessel, to make a more minute examination. So very limpid was the water of that sea, it was easy enough to discern a bright object on the bottom, at a depth of several fathoms. There were no streams in that part of the world to pour their deposits into the ocean, and air itself is scarce more transparent than the pure water of the ocean, when unpolluted with any foreign substances. All it wants is light, to enable the eye to reach into it’s mysteries for a long way. Mark could very distinctly perceive the sand beneath the Rancocus’ keel, and saw that the ship still floated two or three feet clear of the bottom. It was near high water, however; and there being usually a tide of about twenty inches, it was plain enough that, on certain winds, the good old craft would come in pretty close contact with the bottom. All expectation of ever getting the vessel out of the basin must now be certainly abandoned, since she lay in a sort of cavity, where the water was six or eight feet deeper than it was within a hundred yards on each side of her.
Having ascertained these facts, Mark provided himself with a fowling-piece, provisions, &c., and set out to explore his newly acquired territories on foot. His steps were first directed to the point where it appeared to the eye, that the vast range of dry land to the westward, extending both north and south, had become connected with the Reef. If such connection existed at all, it was by two very narrow necks of rock, of equal height, both of which had come up out of the water under the late action, which action had considerably altered and extended the shores of Crater Island. Sand appeared in various places along these shores, now; whereas, previously to the earthquake, they had everywhere been nearly perpendicular rocks.


